Water purifier



FIG. 1 is a front perspective view of a water purifier showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational;

FIG. 4 is a left side elevational view;

FIG. 5 is a right side elevational view;

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a water purifier, as shown and described. 